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This is the way I like to change the thermostats on the 3.8 liter engines. The main difference is how I manage getting the cooling system "drained" to swap it out. It saves quite a bit of time. This applies to any GM 3.8 L / 3800 Series I II III (One, Two, or Three) 1, 2, or 3. L36, L26, L67, L32 Common vehicles with the 3800: Pontiac: Grand Prix, Bonneville, Firebird Chevy/Chevrolet: Impala, Monte Carlo, Camaro Buick: Regal, LeSabre, Park Ave, Century, Riviera, Reatta Oldsmobile: Silhouette
My check engine light came on in the fall of '09 so I had the code pulled. It was P0128- Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). I decided to check and replace the thermostat. It was the problem and has been fine since. Overall the job took about 45 min to 1 hour including draining, warming the engine, and refilling the cooling system. It was a pretty easy fix. This problem causes the engine to run too cool because the thermostat is stuck open, causing more coolant to go through the radiator than necessary. Ignoring this problem causes the fuel mixture to be too rich, which will cause poor fuel economy.
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In this video I go through the steps on determining why you may have code p0115. Ultimately, it comes down to two things, the harness connector or the coolant temperature sensor itself. A simple diagnosis that any one can perform at home. This was performed on a 1997 Nissan Maxima. Check with your vehicle's repair manual for testing parameters. »»» Subscribe: http://youtube.com/carsntoys »»» Facebook: https://www.facebook.com/pages/Carsntoys/118041931705993 »»» Website: http://carsntoys.net ***OTHER VIDEOS THAT MAY INTEREST YOU*** --- Wheel bearing replacement with basic hand tools: https://youtu.be/B4EW_cJrzIE --- Choosing the best oil filter: Wix XP / Amsoil / Royal Purple.. https://youtu.be/kx-NT1DEtlU --- Touch Screen car radio install: https://youtu.be/ZZ_WYUIAI0o Tools Used: Safety Glasses Digital Multi Meter Note: This video is being performed by an experienced tech. Any attempt to repair automotive parts and/or systems carries risk of personal injury. Always adhere and follow safe practices when working on vehicles. Such as, use safety glasses, jack stands, no loose clothing, etc. No guarantee or warranty is implied. Use the information in this video at your own risk. Publication, reproduction or distribution of this film is strictly prohibited. Carsntoys http://youtube.com/carsntoys
today we change a thermostat in a 2006 Buick lucerne
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